Heh ya, reputation with regular PvPers is a huge deal. It's one of the huge reasons I role through the WZs on different characters. They won't remember you if they don't see your name too often. Now, that's a great thing under 50, at 50 you have to be known or nobody will every take you seriously on your own side, unless you are in a good guild.

I always wished Bioware changed the symbols system we can use to mark targets so that in PvP, if you get marked by the enemy team, you can see the mark.